package com.cn.medicalcare.controller.servlet.superadmin;

import com.cn.medicalcare.customtool.JsonTool;
import com.cn.medicalcare.pojo.Admin;
import com.cn.medicalcare.service.AdminService;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.LinkedHashMap;
import java.util.Map;

@WebServlet("/superadmin/checkusername.json")
public class CheckAdminUsernameServlet extends HttpServlet {

    private AdminService adminService=AdminService.getInstance();
    @Override
    protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        String username=req.getParameter("username");
        PrintWriter pw=resp.getWriter();
        Map<String,String> map=new LinkedHashMap<>();
        if((username==null || username.length()==0)){
            //参数错误
            map.put("status","400");
        }else {
            Admin admin=adminService.selectAdminByUsername(username);
            if(admin==null){
                //用户名可用
                map.put("status","200");
            }else {
                //用户名不可用
                map.put("status","500");
            }
        }
        pw.print(JsonTool.toJson(map));
    }
}
